|Country||People's Republic of China|
|o Total||888 km2 (343 sq mi)|
|Time zone||UTC+8 (China Standard)|
Yanshi (simplified Chinese: ; traditional Chinese: ; pinyin: ) is a county-level city administered by the prefecture-level city of Luoyang in western Henan province, China. Yanshi lies on the Luo River and is the easternmost county-level division of Luoyang.
After the Zhou conquest of Shang in mid-11th century BC, King Wu of Zhou founded a garrison town to the east of modern Yanshi to accommodate some of the campaigning troops. The name "Yanshi" is short of "settling down the Rong army" (?). When Qin annexed Zhou in 256 BC, Yanshi County was established. The county's borders underwent several changes over the course of history. In 1993, Yanshi County became the county-level Yanshi City.
As 2012, this city is divided to 11 towns and 3 townships.
There are two important archaeological sites in this area.
In 1983, a walled city dating from 1600 BC was found 6 km (3.7 mi) north-east of the Erlitou site in Yanshi's Shixianggou Township. This city, now known as Yanshi Shang City (?, Y?nsh? Sh?ngchéng), had an area of nearly 200 ha (490 acres) and featured pottery characteristic of the Erligang culture. Some scholars--including the Xia-Shang-Zhou Chronology Project--identify it with the first Shang dynasty capital, Western Bo (, X?bó) which was traditionally credited to King Tang after his defeat of the Xia dynasty.